<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
  <style>
    h1{
      color:#ff0000 ;
      color:#00ff00 ;
      color:#00f ;
      color: rgb(255,0,0);
      color: rgba(0,255,0,0.5);
    }
    #d1{
      background-color: lightskyblue;
      width: 200px;
      height: 200px;
      background-image: url("../bg.jpg");
      background-size: 100px 100px;
      background-repeat: no-repeat;
      background-position: 100px 0px;
      background-position: 50% 50%;
    }
    #d2{
      background-color: #E8E8E8;
      width: 611px;
      height: 376px;
      background-image: url("http://doc.canglaoshi.org/tstore_v1/images/itemCat/study_computer_img1.png");
      background-size: 318px 319px;
      background-repeat: no-repeat;
      background-position: 90% 80%;
    }
    
  </style>
</head>
<body>
<h1>颜色测试</h1>
<div id="d1"></div>
<div id="d2"></div>
<a href="http://doc.canglaoshi.org/tstore_v1/images/itemCat/study_computer_img1.png">图片</a>

</body>
</html>